Diver toy



Jly 3, 1928.

1,675,522 c. WEIDINGER ET AL DIVER TOY 3 Sheets-Sheet Filed Jan.

July 3, 1928. 1,675,522

c. wElDxNGr-:R ET AL DIVER TOY Filed Jan. e, 1926 3 sheets-sheet 2 /46 Inventors July 3, 1928.

c. WEIDINGE'R ET AL DIVER TOY Filed Jan. 6, 1926 .3 Shets-Sheet Q7/. iQ/f hier l "4 Patented July 3, 1928.

UNITED STATES PATENT orFlcE.

cnnxsrIAN Weinmann, LUDWIG GRADI., Ann mmm scnmma, or nunmzna, GERMANY, AssIeNons rro BAYEmscHE cELLULomwAnENrAnaIx, von. ALBERT 'wAxxEia A.G., or NUREMBEBG, GERMANY.

DIVEB TOY.

Application led January 6, 1926, Serial ll'c. 79,594, and in Germany June 22, 1925.

This invention relates to a'toy consisting of a receptacle filled with water and of a iigureiloating in the water and which, after the manner of a Cartesian diver, can be made to dive by a pressure exerted upon an elastic portion of the receptacle. This effect is produced' by the compression of an air bubble in the hollow figure caused by'the outer pressure so that water penetrates through a hole into said figure. The figure becomes heavier and sinks until the outer pressure ceases, then the figure ascends again as it gets lighter owing to the expansion of the air bubble.

The devices of this kind of known type consist of a glass tube containing the figure; a diaphragm is stretched over the mout-h of 'the tube. Such devices scrve usually only for explaining physical phenomena but they cannot be used as toys as the manipulation is too difficult for children. The glass tube breaks easily and the child could be injured.

An inconvenience of the known devices of l this kind is further that they become inoperative after a short time. The reason for this is that the quantity of air contained in the figure is reduced in the course of time as it either escapes directly through the hole or is absorbed by the surrounding water. l

This invention has for its object to improve the construction in such a manner that the device can serve as toy for children and remains permanently operative. With this object in view the receptacle is entirely made of elastic material, for instance Celluloid. The child can grip the tube at any point and exert a more or less strong pressure on the tube. Arrangements are further made to prevent the escape of air from the figure or to prevent this air from being absorbed by the water.

An embodiment of the invention is shown, by way of example, in the accompanying drawing -in which: f

Fig. 1 shows the toy the tube being in vertical section and' the dgure lin elevation.

Fig. 2 shows in vertical section the figure contained in the tube.

Fig. 3 is a similar view as Fig. 2 the ligure being in another sition.

Figs. 4 and 5 s ow in vertical section the toy and the fi ure; the air in the figure is enclosed in a little hollowbody. Y

Figs. 6 to 11 show forms of construction of the ligure according to which the air in the figure is separated from the water in lower ends by caps m, m. In the upper cap a hole is provided which is closed by a stopper v so that the tube can be filled with water. The figure b is hollow and filled with water as shown in Figs. 2 and 3, with the exception of an air bubble Z. A narrow hole e is 1n the wall of the figure through which hole the pressure. of the surrounding water is propagated to the water in the ligure. A short tube f inwardly projecting from the hole e serves to prevent the bubble l 'from escaping through the hole e in whichever position the figure may be. If the iigure stands upright 1n the Water, as shown in Fig 2, the air bubble is in the head ot the ligure. If the figure stands on the head or if it is lying on the back the air bubble is either in the foot portion of the figure or in the stom-l ach. If the figure is however lying on the stomach, as shown in Fig. 3, the air bubble surrounds the tube f and can also not escape through the hole e.

In order to prevent the air being absorbed b the water 1n the course of time it is enc osed in a hollow body of elastic material, said hollow bod being of any desired shape.

As shown in igs. 4 and 5 the hollow body g has the shape of a, ball made of rubber. The ball g mamtains the figure permanently iloatin in the upper portion of tube a., a hole u eing provided in the foot'of the tigure. When the tube a is compressed the volume of the air ball decreases as shown in the drawing and the figure sinks to the bottom.

Acrding to Fig. 6 the head of the ligure b is formed by the hollow body g filled with air. The neck c of the head g is covered at its lower end' with a rubber dianhrnm body of the figure.

Yso

s, covered by a diaphragm t.

t, the edge of which is airtightly clamped between the neck and the upper end of the The body of the ti ure is tilled with water and the narrow ho e u is in the sole of the foot of the figure. A pressure exerted from thc outer side upon the tube a makes the rubbed diaphragm t bulge upward as indicated in dotted lines so that the volume of the air filled space is reduced and more water is sucked into the body of the figure' which becomes heavier and sinks to the bottom of the tube.

Fig. 7 .shows a figure the hat ot which forms the hollow air body g. .In an o ening of the top portion of the head of the gure a shallow cup h is inserted. O11 this cup h u second cup z' turned upside down is placed. 'Ihe two cups are airtightly connected the one with the other. The bottom ofboth cups or the bottom of one of the cups is so thin that it yields easily under the increased pressure of the surrounding water.

As shown in Fig. 8 the Whole figure b serves as air reservoir g. In the body of the figure a tube 1* is mounted which has a slot When the water pressure in the tube fr' increases the diaphragm t is bulged inwardly into the iigure which is filled with air.

According to Fig. 9 an opening o in the wall of the figure is covered by a diaphragm t, the edge of which is clamped in a metal mounting which is either soldered or cemented on the Wall of the figure according to the material of which the figure is made. If the figure is made of Celluloid the fixation shown in Fig. 10 is preferably used. The metal mounting d is of S-shaped cross section. The diaphragm t is located in the inner groove of the mounting. In order `that the diaphragm t be not damaged yby the sharp edge z of the mounting a strip p of celluloid or other suitable material is inserted which serves further to tightly pack the diaphragm.

In the outer groove of the mounting' a celluloid rin n 1s placed which projects over the edge o the mounting and is cemented on the wall w of the figure.

The figure shown in Fig. 11 diers from the figure shown in Fig. 9 1n that there is no separate diaphragm, the wall w of the figure being elastic so that, as shown in dotted lines, it ields to the increased water pressure.

e claim 1.- A toy of the character set forth, cornprisin a sealed container, substantially filled with liquid, and a pressure-responsive diving member ioatable therein, the wall material of the body of the container being of inherently elastic character so as to be readily yieldable under squeezing com ression for diametric contraction of said container to causethe same to exert suicient pressure on the contained liquid to operate the diving member.

2. A toy of the character set forth, comprising a sealed tubular transparent container, substantially filled with liquid, and a pressure-controllable diving member oatable therein, the body of said container bein of elastic material diametrically contractibll to a degree to cause the same to exert suicient pressure in the contained liquid to operate the diving member.

A toy of the character set forth, comprising a container sealed at its ends and substantially filled with liquid, and a pressure-responsive diving member oatable therein, the body of said container being of elastic material and diametrically compressible between its ends to a degree to cause the same to exert pressure on the contained liquid for operatlng the diving member.

In testimony whereof we aix our signatures.

CHRISTIAN WEIDINGER. LUDWIG GRADL. MARTIN SCHNNER.

ody of thel 

